Dioxin and furan residues in wood mice (Apodemus sylvaticus) following a large scale polyvinyl chloride (PVC) fire

A A Meharg, R F Shore, M C French, D Osborn

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Abstract

A forest ecosystem was contaminated as a result of a fire involving 600t of PVC. A wide range of 2,3,7,8-substituted dioxin and furan congeners were elevated (by up to 4-fold) on soil adjacent to the factory compared to a site 200m from the factory perimeter. Livers of wood mice (Apodemus sylvaticus) caught on these areas were also analysed for dioxins and furans. Toxic equivalents (TEQs) were 9-fold higher in wood mice caught on the site 10m from the factory perimeter compared with the site 200m from the perimeter, with individual 2,3,7,8-substituted congeners being elevated by up to 30-fold. Wood mouse liver TEQs were found to be highly correlated with cadmium kidney concentrations, cadmium also being found at elevated concentrations at the accident site. There was also a significant positive correlation between wood mouse liver TEQs and relative liver weights (wet weights expressed as a percentage of total body weight). The results of this study are discussed in the wider context of dioxin contamination in the environment. (C) 1997 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)213-220
Number of pages8
JournalEnvironmental Pollution
Volume97
Issue number3
Publication statusPublished - 1997

Keywords

  • CONTAMINATED AREA
  • 2,3,7,8-TETRACHLORODIBENZO-PARA-DIOXIN
  • ACCIDENTS
  • WILDLIFE
  • ANIMALS
  • PCDDS
  • PCDFS
  • COMBUSTION
  • WAREHOUSE
  • MARKERS

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